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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:21:46                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              230/Upshur                                                VRSN:      W
                                                        230-908/Union Grove ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               10,366,115        0.7883            13,149,962               7              674         .245754001
      2           A               10,363,443        0.8364            12,390,534               9              225         .093510336
      3           A               10,431,460        0.8547            12,204,820               8              146         .070350777
      4           A               10,295,553        0.9779            10,528,227               8               78         .078194483
      5           D3              25,610,191        0.9821            26,076,969              25            1,394         .027520942
      6           G1              22,742,825        1.0667            21,320,732               6               64         .026099966
      7           G1              22,699,365        0.9714            23,367,681               5               23         .002614863
      8           G1              24,436,426        0.9938            24,588,877               4                7         .004258289
      9           G1              19,137,056        1.0534            18,166,941               2                3         .000201352
  RANDOM TOTALS:                 156,082,434                         161,794,743              74            2,614
  CATG D1 EXCEPTION VALUES:          987,891                             951,475
 TOTAL TEST VALUES (4):          157,070,325                         162,746,218
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:            8,137,311
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            154,608,907 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             157,070,325 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            170,883,529 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             154,618,930 (SEE ISD SUMMARY WORKSHEET)

 SOURCES:
 (1) SEE STRATIFIED CATEGORY WORKSHEET REPORTS PTS236, PTS430
 (2) NUMBER OF PARCELS SAMPLED BY STAFF
 (3) TOTAL CATEGORY PARCELS FROM STRATIFICATION REPORT APPRAISAL ROLL, OR SELF-REPORT
 (4) INCLUDES ANY PARCELS IN A, B, C, D3, F1, G1, G2,OR L1 MARKED AS EXCEPTION PROPERTIES
 (5) UNSTUDIED CATEGORIES AND SUB-CATEGORIES WERE NOT INCLUDED IN THE CONFIDENCE INTERVAL VALUES